Milled Fiberglass 1 LBS - Epoxy Thickener - Fiberglass Resin Filler Material for Epoxy, Vinyl Ester, and Polyester Resin Systems - Add to Fumed Silica Thickener for Repairing Holes, Cracks and Tears

Perfect for thickening epoxy for fiberglass work

Good price, worked well, mixed well, came on time

L

Great reinforcement when making repairs make sure to mix in with the resin before you add harder

a bit costly for the amount but it did the job fine.

It’s milled fiberglass

Excelente producto muy eficiente

Good god, how have I not picked this stuff up earlier? I've seen several videos of Youtubers mixing this stuff into epoxy to produce a thicker product, all the way up to a peanut-butter-like paste that will hold its shape and not drip, but I never thought to look for some and try it out myself. You'd be surprised at how many uses you can find for thick epoxy. It's basically the entire selling point of that 2-part putty stuff that you knead together until it's a uniform color. Functionally, I noticed almost no difference to the bond strength or open time of the epoxy. It's super easy to use (add a little at a time and mix thoroughly until you get the viscosity you desire), then apply and proceed as you normally would. They do sell pre-thickened epoxy and I can see how that might be convenient if you're using it all the time, but this allows you to mix to your desired consistency and use your existing epoxy rather than buying it separately in tubes. Considering how much you're getting here, it's a pretty good value and I can't really think of anything I don't like about the product other than the fact that it's fiberglass and you'll want to wear the appropriate PPE to protect your eyes, lungs, and skin from irritation. Other than that, though, great stuff. Very happy with it.